// The following information can be retrieved from the MachineDebugInfo.
//
// -- Source directories - Directories are uniqued based on their canonical
-// string and assigned a sequential numeric ID (base 1.) A directory ID - 1
-// provides the index of directory information in a queried directory list.
+// string and assigned a sequential numeric ID (base 1.)
// -- Source files - Files are also uniqued based on their name and directory
-// ID. A file ID is sequential number (base 1.) A file ID - 1 provides the
-// index of source information in a queried file list.
+// ID. A file ID is sequential number (base 1.)
// -- Source line coorespondence - A vector of file ID, line#, column# triples.
// A DEBUG_LOCATION instruction is generated by the DAG Legalizer
// corresponding to each entry in the source line list. This allows a debug
-// information emitter to generate labels to map code addressed to debug
-// tables.
+// emitter to generate labels referenced by degug information tables.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_CODEGEN_MACHINEDEBUGINFO_H
#define LLVM_CODEGEN_MACHINEDEBUGINFO_H
-#include "llvm/Pass.h"
+#include "llvm/Support/Dwarf.h"
#include "llvm/ADT/UniqueVector.h"
+#include "llvm/Pass.h"
+#include "llvm/User.h"
+
#include <string>
+#include <set>
namespace llvm {
+//===----------------------------------------------------------------------===//
// Forward declarations.
-class ConstantStruct;
+class DebugInfoDesc;
class GlobalVariable;
class Module;
+class PointerType;
+class StructType;
//===----------------------------------------------------------------------===//
-/// DebugInfoWrapper - This class is the base class for debug info wrappers.
+// Debug info constants.
+enum {
+ LLVMDebugVersion = 1, // Current version of debug information.
+ DIInvalid = ~0U, // Invalid result indicator.
+
+ // DebugInfoDesc type identifying tags.
+ // FIXME - Change over with gcc4.
+#if 1
+ DI_TAG_compile_unit = DW_TAG_compile_unit,
+ DI_TAG_global_variable = DW_TAG_variable,
+ DI_TAG_subprogram = DW_TAG_subprogram
+#else
+ DI_TAG_compile_unit = 1,
+ DI_TAG_global_variable,
+ DI_TAG_subprogram
+#endif
+};
+
+//===----------------------------------------------------------------------===//
+/// DIApplyManager - Subclasses of this class apply steps to each of the fields
+/// in the supplied DebugInfoDesc.
+class DIApplyManager {
+public:
+ DIApplyManager() {}
+ virtual ~DIApplyManager() {}
+
+
+ /// ApplyToFields - Target the manager to each field of the debug information
+ /// descriptor.
+ void ApplyToFields(DebugInfoDesc *DD);
+
+ /// Apply - Subclasses override each of these methods to perform the
+ /// appropriate action for the type of field.
+ virtual void Apply(int &Field) = 0;
+ virtual void Apply(unsigned &Field) = 0;
+ virtual void Apply(bool &Field) = 0;
+ virtual void Apply(std::string &Field) = 0;
+ virtual void Apply(DebugInfoDesc *&Field) = 0;
+ virtual void Apply(GlobalVariable *&Field) = 0;
+};
+
+//===----------------------------------------------------------------------===//
+/// DebugInfoDesc - This class is the base class for debug info descriptors.
///
-class DebugInfoWrapper {
+class DebugInfoDesc {
+private:
+ unsigned Tag; // Content indicator. Dwarf values are
+ // used but that does not limit use to
+ // Dwarf writers.
+
protected:
- GlobalVariable *GV; // "llvm.db" global
- ConstantStruct *IC; // Initializer constant.
+ DebugInfoDesc(unsigned T) : Tag(T) {}
public:
- DebugInfoWrapper(GlobalVariable *G);
+ virtual ~DebugInfoDesc() {}
+
+ // Accessors
+ unsigned getTag() const { return Tag; }
- /// getGlobal - Return the "llvm.db" global.
- ///
- GlobalVariable *getGlobal() const { return GV; }
+ /// TagFromGlobal - Returns the Tag number from a debug info descriptor
+ /// GlobalVariable.
+ static unsigned TagFromGlobal(GlobalVariable *GV, bool Checking = false);
- /// operator== - Used by Uniquevector to locate entry.
+ /// DescFactory - Create an instance of debug info descriptor based on Tag.
+ /// Return NULL if not a recognized Tag.
+ static DebugInfoDesc *DescFactory(unsigned Tag);
+
+ //===--------------------------------------------------------------------===//
+ // Subclasses should supply the following static methods.
+
+ // Implement isa/cast/dyncast.
+ static bool classof(const DebugInfoDesc *) { return true; }
+
+ //===--------------------------------------------------------------------===//
+ // Subclasses should supply the following virtual methods.
+
+ /// ApplyToFields - Target the apply manager to the fields of the descriptor.
///
- bool operator==(const DebugInfoWrapper &DI) const { return IC == DI.IC; }
+ virtual void ApplyToFields(DIApplyManager *Mgr) = 0;
- /// operator< - Used by Uniquevector to locate entry.
+ /// TypeString - Return a string used to compose globalnames and labels.
///
- bool operator<(const DebugInfoWrapper &DI) const { return IC < DI.IC; }
+ virtual const char *TypeString() const = 0;
+
+#ifndef NDEBUG
+ virtual void dump() = 0;
+#endif
};
//===----------------------------------------------------------------------===//
-/// CompileUnitWrapper - This class wraps a "lldb.compile_unit" global to
-/// provide easy access to its attributes.
-class CompileUnitWrapper : public DebugInfoWrapper {
-private:
- // Operand indices.
- enum {
- Tag_op,
- Version_op,
- Language_op,
- FileName_op,
- Directory_op,
- Producer_op,
- Anchor_op, // ignored
- N_op
- };
+/// CompileUnitDesc - This class packages debug information associated with a
+/// source/header file.
+class CompileUnitDesc : public DebugInfoDesc {
+private:
+ unsigned DebugVersion; // LLVM debug version when produced.
+ unsigned Language; // Language number (ex. DW_LANG_C89.)
+ std::string FileName; // Source file name.
+ std::string Directory; // Source file directory.
+ std::string Producer; // Compiler string.
+ GlobalVariable *TransUnit; // Translation unit - ignored.
public:
- CompileUnitWrapper(GlobalVariable *G);
+ CompileUnitDesc()
+ : DebugInfoDesc(DI_TAG_compile_unit)
+ , DebugVersion(LLVMDebugVersion)
+ , Language(0)
+ , FileName("")
+ , Directory("")
+ , Producer("")
+ , TransUnit(NULL)
+ {}
- /// getGlobal - Return the "lldb.compile_unit" global.
- ///
- GlobalVariable *getGlobal() const { return GV; }
-
- /// getTag - Return the compile unit's tag number. Currently DW_TAG_variable,
- /// DW_TAG_subprogram or DW_TAG_compile_unit.
- unsigned getTag() const;
+ // Accessors
+ unsigned getDebugVersion() const { return DebugVersion; }
+ unsigned getLanguage() const { return Language; }
+ const std::string &getFileName() const { return FileName; }
+ const std::string &getDirectory() const { return Directory; }
+ const std::string &getProducer() const { return Producer; }
+ void setLanguage(unsigned L) { Language = L; }
+ void setFileName(const std::string &FN) { FileName = FN; }
+ void setDirectory(const std::string &D) { Directory = D; }
+ void setProducer(const std::string &P) { Producer = P; }
+ // FIXME - Need translation unit getter/setter.
- /// isCorrectDebugVersion - Return true if is the correct llvm debug version.
- /// Currently the value is 0 (zero.) If the value is is not correct then
- /// ignore all debug information.
- bool isCorrectDebugVersion() const;
+ // Implement isa/cast/dyncast.
+ static bool classof(const CompileUnitDesc *) { return true; }
+ static bool classof(const DebugInfoDesc *D) {
+ return D->getTag() == DI_TAG_compile_unit;
+ }
- /// getLanguage - Return the compile unit's language number (ex. DW_LANG_C89.)
- ///
- unsigned getLanguage() const;
+ /// DebugVersionFromGlobal - Returns the version number from a compile unit
+ /// GlobalVariable.
+ static unsigned DebugVersionFromGlobal(GlobalVariable *GV,
+ bool Checking = false);
- /// getFileName - Return the compile unit's file name.
+ /// ApplyToFields - Target the apply manager to the fields of the
+ /// CompileUnitDesc.
+ virtual void ApplyToFields(DIApplyManager *Mgr);
+
+ /// TypeString - Return a string used to compose globalnames and labels.
///
- const std::string getFileName() const;
+ virtual const char *TypeString() const;
+
+#ifndef NDEBUG
+ virtual void dump();
+#endif
+};
+
+//===----------------------------------------------------------------------===//
+/// GlobalVariableDesc - This class packages debug information associated with a
+/// GlobalVariable.
+class GlobalVariableDesc : public DebugInfoDesc {
+private:
+ DebugInfoDesc *Context; // Context debug descriptor.
+ std::string Name; // Global name.
+ GlobalVariable *TransUnit; // Translation unit - ignored.
+ // FIXME - Use a descriptor.
+ GlobalVariable *TyDesc; // Type debug descriptor.
+ bool IsStatic; // Is the global a static.
+ bool IsDefinition; // Is the global defined in context.
+ GlobalVariable *Global; // llvm global.
- /// getDirectory - Return the compile unit's file directory.
- ///
- const std::string getDirectory() const;
+public:
+ GlobalVariableDesc()
+ : DebugInfoDesc(DI_TAG_global_variable)
+ , Context(0)
+ , Name("")
+ , TransUnit(NULL)
+ , TyDesc(NULL)
+ , IsStatic(false)
+ , IsDefinition(false)
+ , Global(NULL)
+ {}
- /// getProducer - Return the compile unit's generator name.
+ // Accessors
+ DebugInfoDesc *getContext() const { return Context; }
+ const std::string &getName() const { return Name; }
+ bool isStatic() const { return IsStatic; }
+ bool isDefinition() const { return IsDefinition; }
+ GlobalVariable *getGlobalVariable() const { return Global; }
+ void setName(const std::string &N) { Name = N; }
+ void setIsStatic(bool IS) { IsStatic = IS; }
+ void setIsDefinition(bool ID) { IsDefinition = ID; }
+ void setGlobalVariable(GlobalVariable *GV) { Global = GV; }
+ // FIXME - Other getters/setters.
+
+ // Implement isa/cast/dyncast.
+ static bool classof(const GlobalVariableDesc *) { return true; }
+ static bool classof(const DebugInfoDesc *D) {
+ return D->getTag() == DI_TAG_global_variable;
+ }
+
+ /// ApplyToFields - Target the apply manager to the fields of the
+ /// GlobalVariableDesc.
+ virtual void ApplyToFields(DIApplyManager *Mgr);
+
+ /// TypeString - Return a string used to compose globalnames and labels.
///
- const std::string getProducer() const;
+ virtual const char *TypeString() const;
+
+#ifndef NDEBUG
+ virtual void dump();
+#endif
};
//===----------------------------------------------------------------------===//
-/// GlobalWrapper - This class wraps a "lldb.global" global to provide easy
-/// access to its attributes.
-class GlobalWrapper : public DebugInfoWrapper {
+/// SubprogramDesc - This class packages debug information associated with a
+/// subprogram/function.
+class SubprogramDesc : public DebugInfoDesc {
private:
- // Operand indices.
- enum {
- Tag_op,
- Context_op,
- Name_op,
- Anchor_op, // ignored
- Type_op,
- Static_op,
- Definition_op,
- GlobalVariable_op,
- N_op
- };
+ DebugInfoDesc *Context; // Context debug descriptor.
+ std::string Name; // Subprogram name.
+ GlobalVariable *TransUnit; // Translation unit - ignored.
+ // FIXME - Use a descriptor.
+ GlobalVariable *TyDesc; // Type debug descriptor.
+ bool IsStatic; // Is the subprogram a static.
+ bool IsDefinition; // Is the subprogram defined in context.
public:
- GlobalWrapper(GlobalVariable *G);
+ SubprogramDesc()
+ : DebugInfoDesc(DI_TAG_subprogram)
+ , Context(0)
+ , Name("")
+ , TransUnit(NULL)
+ , TyDesc(NULL)
+ , IsStatic(false)
+ , IsDefinition(false)
+ {}
- /// getGlobal - Return the "lldb.global" global.
- ///
- GlobalVariable *getGlobal() const { return GV; }
+ // Accessors
+ DebugInfoDesc *getContext() const { return Context; }
+ const std::string &getName() const { return Name; }
+ bool isStatic() const { return IsStatic; }
+ bool isDefinition() const { return IsDefinition; }
+ void setName(const std::string &N) { Name = N; }
+ void setIsStatic(bool IS) { IsStatic = IS; }
+ void setIsDefinition(bool ID) { IsDefinition = ID; }
+ // FIXME - Other getters/setters.
+
+ // Implement isa/cast/dyncast.
+ static bool classof(const SubprogramDesc *) { return true; }
+ static bool classof(const DebugInfoDesc *D) {
+ return D->getTag() == DI_TAG_subprogram;
+ }
+
+ /// ApplyToFields - Target the apply manager to the fields of the
+ /// SubprogramDesc.
+ virtual void ApplyToFields(DIApplyManager *Mgr);
- /// getContext - Return the "lldb.compile_unit" context global.
+ /// TypeString - Return a string used to compose globalnames and labels.
///
- GlobalVariable *getContext() const;
+ virtual const char *TypeString() const;
- /// getTag - Return the global's tag number. Currently should be
- /// DW_TAG_variable or DW_TAG_subprogram.
- unsigned getTag() const;
+#ifndef NDEBUG
+ virtual void dump();
+#endif
+};
+
+//===----------------------------------------------------------------------===//
+/// DIDeserializer - This class is responsible for casting GlobalVariables
+/// into DebugInfoDesc objects.
+class DIDeserializer {
+private:
+ Module *M; // Definition space module.
+ unsigned DebugVersion; // Version of debug information in use.
+ std::map<GlobalVariable *, DebugInfoDesc *> GlobalDescs;
+ // Previously defined gloabls.
+
+public:
+ DIDeserializer() : M(NULL), DebugVersion(LLVMDebugVersion) {}
+ ~DIDeserializer() {}
+
+ // Accessors
+ Module *getModule() const { return M; };
+ void setModule(Module *module) { M = module; }
+ unsigned getDebugVersion() const { return DebugVersion; }
- /// getName - Return the name of the global.
+ /// Deserialize - Reconstitute a GlobalVariable into it's component
+ /// DebugInfoDesc objects.
+ DebugInfoDesc *Deserialize(Value *V);
+ DebugInfoDesc *Deserialize(GlobalVariable *GV);
+};
+
+//===----------------------------------------------------------------------===//
+/// DISerializer - This class is responsible for casting DebugInfoDesc objects
+/// into GlobalVariables.
+class DISerializer {
+private:
+ Module *M; // Definition space module.
+ PointerType *StrPtrTy; // A "sbyte *" type. Created lazily.
+ PointerType *EmptyStructPtrTy; // A "{ }*" type. Created lazily.
+ std::map<unsigned, StructType *> TagTypes;
+ // Types per Tag. Created lazily.
+ std::map<DebugInfoDesc *, GlobalVariable *> DescGlobals;
+ // Previously defined descriptors.
+ std::map<const std::string, GlobalVariable*> StringCache;
+ // Previously defined strings.
+public:
+ DISerializer() : M(NULL) {}
+ ~DISerializer() {}
+
+ // Accessors
+ Module *getModule() const { return M; };
+ void setModule(Module *module) { M = module; }
+
+ /// getStrPtrType - Return a "sbyte *" type.
///
- const std::string getName() const;
+ const PointerType *getStrPtrType();
- /// getType - Return the type of the global.
+ /// getEmptyStructPtrType - Return a "{ }*" type.
///
- const GlobalVariable *getType() const;
-
- /// isStatic - Return true if the global is static.
+ const PointerType *getEmptyStructPtrType();
+
+ /// getTagType - Return the type describing the specified descriptor (via
+ /// tag.)
+ const StructType *getTagType(DebugInfoDesc *DD);
+
+ /// getString - Construct the string as constant string global.
///
- bool isStatic() const;
+ GlobalVariable *getString(const std::string &String);
+
+ /// Serialize - Recursively cast the specified descriptor into a
+ /// GlobalVariable so that it can be serialized to a .bc or .ll file.
+ GlobalVariable *Serialize(DebugInfoDesc *DD);
+};
- /// isDefinition - Return true if the global is a definition.
- ///
- bool isDefinition() const;
+//===----------------------------------------------------------------------===//
+/// DIVerifier - This class is responsible for verifying the given network of
+/// GlobalVariables are valid as DebugInfoDesc objects.
+class DIVerifier {
+private:
+ unsigned DebugVersion; // Version of debug information in use.
+ std::set<GlobalVariable *> Visited; // Tracks visits during recursion.
+ std::map<unsigned, unsigned> Counts; // Count of fields per Tag type.
+
+ /// markVisited - Return true if the GlobalVariable hase been "seen" before.
+ /// Mark markVisited otherwise.
+ bool markVisited(GlobalVariable *GV);
- /// getGlobalVariable - Return the global variable (tag == DW_TAG_variable.)
- ///
- GlobalVariable *getGlobalVariable() const;
+public:
+ DIVerifier() : DebugVersion(LLVMDebugVersion) {}
+ ~DIVerifier() {}
+
+ /// Verify - Return true if the GlobalVariable appears to be a valid
+ /// serialization of a DebugInfoDesc.
+ bool Verify(GlobalVariable *GV);
};
//===----------------------------------------------------------------------===//
///
class MachineDebugInfo : public ImmutablePass {
private:
+ // Debug indforma
+ // Use the same serializer/deserializer/verifier for the module.
+ DISerializer SR;
+ DIDeserializer DR;
+ DIVerifier VR;
+
// CompileUnits - Uniquing vector for compile units.
- UniqueVector<CompileUnitWrapper> CompileUnits;
+ UniqueVector<CompileUnitDesc *> CompileUnits;
// Directories - Uniquing vector for directories.
UniqueVector<std::string> Directories;
/// getCompileUnits - Return a vector of debug compile units.
///
- const UniqueVector<CompileUnitWrapper> getCompileUnits() const;
+ const UniqueVector<CompileUnitDesc *> getCompileUnits() const;
- /// getGlobalVariables - Return a vector of debug global variables.
+ /// getGlobalVariables - Return a vector of debug GlobalVariables.
///
- static std::vector<GlobalWrapper> getGlobalVariables(Module &M);
+ std::vector<GlobalVariableDesc *> getGlobalVariables(Module &M);
}; // End class MachineDebugInfo
#include "llvm/Constants.h"
#include "llvm/DerivedTypes.h"
+#include "llvm/GlobalVariable.h"
#include "llvm/Intrinsics.h"
#include "llvm/Instructions.h"
#include "llvm/Module.h"
#include "llvm/Support/Dwarf.h"
+#include <iostream>
+
using namespace llvm;
// Handle the Pass registration stuff necessary to use TargetData's.
//===----------------------------------------------------------------------===//
-/// getGlobalVariablesUsing - Return all of the global variables which have the
+/// getGlobalVariablesUsing - Return all of the GlobalVariables which have the
/// specified value in their initializer somewhere.
static void
getGlobalVariablesUsing(Value *V, std::vector<GlobalVariable*> &Result) {
// Scan though value users.
for (Value::use_iterator I = V->use_begin(), E = V->use_end(); I != E; ++I) {
if (GlobalVariable *GV = dyn_cast<GlobalVariable>(*I)) {
- // If the user is a global variable then add to result.
+ // If the user is a GlobalVariable then add to result.
Result.push_back(GV);
} else if (Constant *C = dyn_cast<Constant>(*I)) {
// If the user is a constant variable then scan its users
}
}
-/// getGlobalVariablesUsing - Return all of the global variables that use the
-/// named global variable.
+/// getGlobalVariablesUsing - Return all of the GlobalVariables that use the
+/// named GlobalVariable.
static std::vector<GlobalVariable*>
getGlobalVariablesUsing(Module &M, const std::string &RootName) {
- std::vector<GlobalVariable*> Result; // Global variables matching criteria.
+ std::vector<GlobalVariable*> Result; // GlobalVariables matching criteria.
- // Get the global variable root.
+ // Get the GlobalVariable root.
GlobalVariable *UseRoot = M.getGlobalVariable(RootName,
StructType::get(std::vector<const Type*>()));
return "";
}
+/// isStringValue - Return true if the given value can be coerced to a string.
+///
+static bool isStringValue(Value *V) {
+ if (GlobalVariable *GV = dyn_cast<GlobalVariable>(V)) {
+ if (GV->hasInitializer() && isa<ConstantArray>(GV->getInitializer())) {
+ ConstantArray *Init = cast<ConstantArray>(GV->getInitializer());
+ return Init->isString();
+ }
+ } else if (Constant *C = dyn_cast<Constant>(V)) {
+ if (GlobalValue *GV = dyn_cast<GlobalValue>(C))
+ return isStringValue(GV);
+ else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(C)) {
+ if (CE->getOpcode() == Instruction::GetElementPtr) {
+ if (CE->getNumOperands() == 3 &&
+ cast<Constant>(CE->getOperand(1))->isNullValue() &&
+ isa<ConstantInt>(CE->getOperand(2))) {
+ return isStringValue(CE->getOperand(0));
+ }
+ }
+ }
+ }
+ return false;
+}
+
/// getGlobalValue - Return either a direct or cast Global value.
///
static GlobalVariable *getGlobalValue(Value *V) {
if (GlobalVariable *GV = dyn_cast<GlobalVariable>(V)) {
return GV;
} else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) {
- return CE->getOpcode() == Instruction::Cast ? dyn_cast<GlobalVariable>(V)
- : NULL;
+ if (CE->getOpcode() == Instruction::Cast) {
+ return dyn_cast<GlobalVariable>(CE->getOperand(0));
+ }
}
return NULL;
}
+/// isGlobalValue - Return true if the given value can be coerced to a
+/// GlobalVariable.
+static bool isGlobalValue(Value *V) {
+ if (isa<GlobalVariable>(V) || isa<ConstantPointerNull>(V)) {
+ return true;
+ } else if (ConstantExpr *CE = dyn_cast<ConstantExpr>(V)) {
+ if (CE->getOpcode() == Instruction::Cast) {
+ return isa<GlobalVariable>(CE->getOperand(0));
+ }
+ }
+ return false;
+}
+
+/// isUIntOperand - Return true if the ith operand is an unsigned integer.
+///
+static bool isUIntOperand(GlobalVariable *GV, unsigned i) {
+ // Make sure the GlobalVariable has an initializer.
+ if (!GV->hasInitializer()) return false;
+
+ // Get the initializer constant.
+ ConstantStruct *CI = dyn_cast<ConstantStruct>(GV->getInitializer());
+ if (!CI) return false;
+ // Check if there is at least i + 1 operands.
+ unsigned N = CI->getNumOperands();
+ if (i >= N) return false;
+
+ // Check constant.
+ return isa<ConstantUInt>(CI->getOperand(i));
+}
+
//===----------------------------------------------------------------------===//
-DebugInfoWrapper::DebugInfoWrapper(GlobalVariable *G)
-: GV(G)
-, IC(dyn_cast<ConstantStruct>(GV->getInitializer())) {
- assert(IC && "llvm.db.global is missing structured constant");
+/// TagFromGlobal - Returns the Tag number from a debug info descriptor
+/// GlobalVariable.
+unsigned DebugInfoDesc::TagFromGlobal(GlobalVariable *GV, bool Checking) {
+ if (Checking && !isUIntOperand(GV, 0)) return DIInvalid;
+ ConstantStruct *CI = cast<ConstantStruct>(GV->getInitializer());
+ Constant *C = CI->getOperand(0);
+ return cast<ConstantUInt>(C)->getValue();
}
+
+/// DescFactory - Create an instance of debug info descriptor based on Tag.
+/// Return NULL if not a recognized Tag.
+DebugInfoDesc *DebugInfoDesc::DescFactory(unsigned Tag) {
+ switch (Tag) {
+ case DI_TAG_compile_unit: return new CompileUnitDesc();
+ case DI_TAG_global_variable: return new GlobalVariableDesc();
+ case DI_TAG_subprogram: return new SubprogramDesc();
+ default: break;
+ }
+ return NULL;
+}
+
+//===----------------------------------------------------------------------===//
+
+/// ApplyToFields - Target the manager to each field of the debug information
+/// descriptor.
+void DIApplyManager::ApplyToFields(DebugInfoDesc *DD) {
+ DD->ApplyToFields(this);
+}
+
+//===----------------------------------------------------------------------===//
+/// DICountAppMgr - This DIApplyManager counts all the fields in the supplied
+/// debug the supplied DebugInfoDesc.
+class DICountAppMgr : public DIApplyManager {
+private:
+ unsigned Count; // Running count of fields.
+
+public:
+ DICountAppMgr() : DIApplyManager(), Count(1) {}
+ // Accessors.
+ unsigned getCount() const { return Count; }
+
+ /// Apply - Count each of the fields.
+ ///
+ virtual void Apply(int &Field) { ++Count; }
+ virtual void Apply(unsigned &Field) { ++Count; }
+ virtual void Apply(bool &Field) { ++Count; }
+ virtual void Apply(std::string &Field) { ++Count; }
+ virtual void Apply(DebugInfoDesc *&Field) { ++Count; }
+ virtual void Apply(GlobalVariable *&Field) { ++Count; }
+};
+
//===----------------------------------------------------------------------===//
+/// DIDeserializeAppMgr - This DIApplyManager deserializes all the fields in
+/// the supplied DebugInfoDesc.
+class DIDeserializeAppMgr : public DIApplyManager {
+private:
+ DIDeserializer &DR; // Active deserializer.
+ unsigned I; // Current operand index.
+ ConstantStruct *CI; // GlobalVariable constant initializer.
+
+public:
+ DIDeserializeAppMgr(DIDeserializer &D, GlobalVariable *GV)
+ : DIApplyManager()
+ , DR(D)
+ , I(1)
+ , CI(cast<ConstantStruct>(GV->getInitializer()))
+ {}
+
+ /// Apply - Set the value of each of the fields.
+ ///
+ virtual void Apply(int &Field) {
+ Constant *C = CI->getOperand(I++);
+ Field = cast<ConstantSInt>(C)->getValue();
+ }
+ virtual void Apply(unsigned &Field) {
+ Constant *C = CI->getOperand(I++);
+ Field = cast<ConstantUInt>(C)->getValue();
+ }
+ virtual void Apply(bool &Field) {
+ Constant *C = CI->getOperand(I++);
+ Field = cast<ConstantBool>(C)->getValue();
+ }
+ virtual void Apply(std::string &Field) {
+ Constant *C = CI->getOperand(I++);
+ Field = getStringValue(C);
+ }
+ virtual void Apply(DebugInfoDesc *&Field) {
+ Constant *C = CI->getOperand(I++);
+ Field = DR.Deserialize(C);
+ }
+ virtual void Apply(GlobalVariable *&Field) {
+ Constant *C = CI->getOperand(I++);
+ Field = getGlobalValue(C);
+ }
+};
-CompileUnitWrapper::CompileUnitWrapper(GlobalVariable *G)
-: DebugInfoWrapper(G)
-{
- // FIXME - should probably ease up on the number of operands (version.)
- assert(IC->getNumOperands() == N_op &&
- "Compile unit does not have correct number of operands");
+//===----------------------------------------------------------------------===//
+/// DISerializeAppMgr - This DIApplyManager serializes all the fields in
+/// the supplied DebugInfoDesc.
+class DISerializeAppMgr : public DIApplyManager {
+private:
+ DISerializer &SR; // Active serializer.
+ std::vector<Constant*> &Elements; // Element accumulator.
+
+public:
+ DISerializeAppMgr(DISerializer &S, std::vector<Constant*> &E)
+ : DIApplyManager()
+ , SR(S)
+ , Elements(E)
+ {}
+
+ /// Apply - Set the value of each of the fields.
+ ///
+ virtual void Apply(int &Field) {
+ Elements.push_back(ConstantUInt::get(Type::IntTy, Field));
+ }
+ virtual void Apply(unsigned &Field) {
+ Elements.push_back(ConstantUInt::get(Type::UIntTy, Field));
+ }
+ virtual void Apply(bool &Field) {
+ Elements.push_back(ConstantBool::get(Field));
+ }
+ virtual void Apply(std::string &Field) {
+ Elements.push_back(SR.getString(Field));
+ }
+ virtual void Apply(DebugInfoDesc *&Field) {
+ GlobalVariable *GV = NULL;
+
+ // If non-NULL the convert to global.
+ if (Field) GV = SR.Serialize(Field);
+
+ // FIXME - At some point should use specific type.
+ const PointerType *EmptyTy = SR.getEmptyStructPtrType();
+
+ if (GV) {
+ // Set to pointer to global.
+ Elements.push_back(ConstantExpr::getCast(GV, EmptyTy));
+ } else {
+ // Use NULL.
+ Elements.push_back(ConstantPointerNull::get(EmptyTy));
+ }
+ }
+ virtual void Apply(GlobalVariable *&Field) {
+ const PointerType *EmptyTy = SR.getEmptyStructPtrType();
+ Elements.push_back(ConstantExpr::getCast(Field, EmptyTy));
+ }
+};
+
+//===----------------------------------------------------------------------===//
+/// DIGetTypesAppMgr - This DIApplyManager gathers all the field types in
+/// the supplied DebugInfoDesc.
+class DIGetTypesAppMgr : public DIApplyManager {
+private:
+ DISerializer &SR; // Active serializer.
+ std::vector<const Type*> &Fields; // Type accumulator.
+
+public:
+ DIGetTypesAppMgr(DISerializer &S, std::vector<const Type*> &F)
+ : DIApplyManager()
+ , SR(S)
+ , Fields(F)
+ {}
+
+ /// Apply - Set the value of each of the fields.
+ ///
+ virtual void Apply(int &Field) {
+ Fields.push_back(Type::IntTy);
+ }
+ virtual void Apply(unsigned &Field) {
+ Fields.push_back(Type::UIntTy);
+ }
+ virtual void Apply(bool &Field) {
+ Fields.push_back(Type::BoolTy);
+ }
+ virtual void Apply(std::string &Field) {
+ Fields.push_back(SR.getStrPtrType());
+ }
+ virtual void Apply(DebugInfoDesc *&Field) {
+ // FIXME - At some point should use specific type.
+ const PointerType *EmptyTy = SR.getEmptyStructPtrType();
+ Fields.push_back(EmptyTy);
+ }
+ virtual void Apply(GlobalVariable *&Field) {
+ const PointerType *EmptyTy = SR.getEmptyStructPtrType();
+ Fields.push_back(EmptyTy);
+ }
+};
+
+//===----------------------------------------------------------------------===//
+/// DIVerifyAppMgr - This DIApplyManager verifies all the field types against
+/// a constant initializer.
+class DIVerifyAppMgr : public DIApplyManager {
+private:
+ DIVerifier &VR; // Active verifier.
+ bool IsValid; // Validity status.
+ unsigned I; // Current operand index.
+ ConstantStruct *CI; // GlobalVariable constant initializer.
+
+public:
+ DIVerifyAppMgr(DIVerifier &V, GlobalVariable *GV)
+ : DIApplyManager()
+ , VR(V)
+ , IsValid(true)
+ , I(1)
+ , CI(cast<ConstantStruct>(GV->getInitializer()))
+ {
+ }
+
+ // Accessors.
+ bool isValid() const { return IsValid; }
+
+ /// Apply - Set the value of each of the fields.
+ ///
+ virtual void Apply(int &Field) {
+ Constant *C = CI->getOperand(I++);
+ IsValid = IsValid && isa<ConstantInt>(C);
+ }
+ virtual void Apply(unsigned &Field) {
+ Constant *C = CI->getOperand(I++);
+ IsValid = IsValid && isa<ConstantInt>(C);
+ }
+ virtual void Apply(bool &Field) {
+ Constant *C = CI->getOperand(I++);
+ IsValid = IsValid && isa<ConstantBool>(C);
+ }
+ virtual void Apply(std::string &Field) {
+ Constant *C = CI->getOperand(I++);
+ IsValid = IsValid && isStringValue(C);
+ }
+ virtual void Apply(DebugInfoDesc *&Field) {
+ // FIXME - Prepare the correct descriptor.
+ Constant *C = CI->getOperand(I++);
+ IsValid = IsValid && isGlobalValue(C);
+ }
+ virtual void Apply(GlobalVariable *&Field) {
+ Constant *C = CI->getOperand(I++);
+ IsValid = IsValid && isGlobalValue(C);
+ }
+};
+
+//===----------------------------------------------------------------------===//
+
+/// DebugVersionFromGlobal - Returns the version number from a compile unit
+/// GlobalVariable.
+unsigned CompileUnitDesc::DebugVersionFromGlobal(GlobalVariable *GV,
+ bool Checking) {
+ if (Checking && !isUIntOperand(GV, 1)) return DIInvalid;
+ ConstantStruct *CI = cast<ConstantStruct>(GV->getInitializer());
+ Constant *C = CI->getOperand(1);
+ return cast<ConstantUInt>(C)->getValue();
+}
+
+/// ApplyToFields - Target the apply manager to the fields of the
+/// CompileUnitDesc.
+void CompileUnitDesc::ApplyToFields(DIApplyManager *Mgr) {
+ Mgr->Apply(DebugVersion);
+ Mgr->Apply(Language);
+ Mgr->Apply(FileName);
+ Mgr->Apply(Directory);
+ Mgr->Apply(Producer);
+ Mgr->Apply(TransUnit);
}
-/// getTag - Return the compile unit's tag number. Currently should be
-/// DW_TAG_variable.
-unsigned CompileUnitWrapper::getTag() const {
- return cast<ConstantUInt>(IC->getOperand(Tag_op))->getValue();
+/// TypeString - Return a string used to compose globalnames and labels.
+///
+const char *CompileUnitDesc::TypeString() const {
+ return "compile_unit";
}
-/// isCorrectDebugVersion - Return true if is the correct llvm debug version.
-/// Currently the value is 0 (zero.) If the value is is not correct then
-/// ignore all debug information.
-bool CompileUnitWrapper::isCorrectDebugVersion() const {
- return cast<ConstantUInt>(IC->getOperand(Version_op))->getValue() == 0;
+#ifndef NDEBUG
+void CompileUnitDesc::dump() {
+ std::cerr << TypeString() << " "
+ << "Tag(" << getTag() << "), "
+ << "Language(" << Language << "), "
+ << "FileName(\"" << FileName << "\"), "
+ << "Directory(\"" << Directory << "\"), "
+ << "Producer(\"" << Producer << "\")\n";
}
+#endif
-/// getLanguage - Return the compile unit's language number (ex. DW_LANG_C89.)
-///
-unsigned CompileUnitWrapper::getLanguage() const {
- return cast<ConstantUInt>(IC->getOperand(Language_op))->getValue();
+//===----------------------------------------------------------------------===//
+
+/// ApplyToFields - Target the apply manager to the fields of the
+/// GlobalVariableDesc.
+void GlobalVariableDesc::ApplyToFields(DIApplyManager *Mgr) {
+ Mgr->Apply(Context);
+ Mgr->Apply(Name);
+ Mgr->Apply(TransUnit);
+ Mgr->Apply(TyDesc);
+ Mgr->Apply(IsStatic);
+ Mgr->Apply(IsDefinition);
+ Mgr->Apply(Global);
}
-/// getFileName - Return the compile unit's file name.
+/// TypeString - Return a string used to compose globalnames and labels.
///
-const std::string CompileUnitWrapper::getFileName() const {
- return getStringValue(IC->getOperand(FileName_op));
+const char *GlobalVariableDesc::TypeString() const {
+ return "global_variable";
}
-/// getDirectory - Return the compile unit's file directory.
-///
-const std::string CompileUnitWrapper::getDirectory() const {
- return getStringValue(IC->getOperand(Directory_op));
+#ifndef NDEBUG
+void GlobalVariableDesc::dump() {
+ std::cerr << TypeString() << " "
+ << "Tag(" << getTag() << "), "
+ << "Name(\"" << Name << "\"), "
+ << "Type(" << TyDesc << "), "
+ << "IsStatic(" << (IsStatic ? "true" : "false") << "), "
+ << "IsDefinition(" << (IsDefinition ? "true" : "false") << "), "
+ << "Global(" << Global << ")\n";
}
+#endif
+
+//===----------------------------------------------------------------------===//
+
+/// ApplyToFields - Target the apply manager to the fields of the
+/// SubprogramDesc.
+void SubprogramDesc::ApplyToFields(DIApplyManager *Mgr) {
+ Mgr->Apply(Context);
+ Mgr->Apply(Name);
+ Mgr->Apply(TransUnit);
+ Mgr->Apply(TyDesc);
+ Mgr->Apply(IsStatic);
+ Mgr->Apply(IsDefinition);
-/// getProducer - Return the compile unit's generator name.
+ // FIXME - Temp variable until restructured.
+ GlobalVariable *Tmp;
+ Mgr->Apply(Tmp);
+}
+
+/// TypeString - Return a string used to compose globalnames and labels.
///
-const std::string CompileUnitWrapper::getProducer() const {
- return getStringValue(IC->getOperand(Producer_op));
+const char *SubprogramDesc::TypeString() const {
+ return "subprogram";
}
+#ifndef NDEBUG
+void SubprogramDesc::dump() {
+ std::cerr << TypeString() << " "
+ << "Tag(" << getTag() << "), "
+ << "Name(\"" << Name << "\"), "
+ << "Type(" << TyDesc << "), "
+ << "IsStatic(" << (IsStatic ? "true" : "false") << "), "
+ << "IsDefinition(" << (IsDefinition ? "true" : "false") << ")\n";
+}
+#endif
+
//===----------------------------------------------------------------------===//
-GlobalWrapper::GlobalWrapper(GlobalVariable *G)
-: DebugInfoWrapper(G)
-{
- // FIXME - should probably ease up on the number of operands (version.)
- assert(IC->getNumOperands() == N_op &&
- "Global does not have correct number of operands");
+DebugInfoDesc *DIDeserializer::Deserialize(Value *V) {
+ return Deserialize(cast<GlobalVariable>(V));
}
+DebugInfoDesc *DIDeserializer::Deserialize(GlobalVariable *GV) {
+ // Check to see if it has been already deserialized.
+ DebugInfoDesc *&Slot = GlobalDescs[GV];
+ if (Slot) return Slot;
-/// getTag - Return the global's tag number. Currently should be
-/// DW_TAG_variable or DW_TAG_subprogram.
-unsigned GlobalWrapper::getTag() const {
- return cast<ConstantUInt>(IC->getOperand(Tag_op))->getValue();
+ // Get the Tag from the global.
+ unsigned Tag = DebugInfoDesc::TagFromGlobal(GV);
+
+ // Get the debug version if a compile unit.
+ if (Tag == DI_TAG_compile_unit) {
+ DebugVersion = CompileUnitDesc::DebugVersionFromGlobal(GV);
+ }
+
+ // Create an empty instance of the correct sort.
+ Slot = DebugInfoDesc::DescFactory(Tag);
+ assert(Slot && "Unknown Tag");
+
+ // Deserialize the fields.
+ DIDeserializeAppMgr DRAM(*this, GV);
+ DRAM.ApplyToFields(Slot);
+
+ return Slot;
}
-/// getContext - Return the "lldb.compile_unit" context global.
+//===----------------------------------------------------------------------===//
+
+/// getStrPtrType - Return a "sbyte *" type.
///
-GlobalVariable *GlobalWrapper::getContext() const {
- return getGlobalValue(IC->getOperand(Context_op));
+const PointerType *DISerializer::getStrPtrType() {
+ // If not already defined.
+ if (!StrPtrTy) {
+ // Construct the pointer to signed bytes.
+ StrPtrTy = PointerType::get(Type::SByteTy);
+ }
+
+ return StrPtrTy;
}
-/// getName - Return the name of the global.
+/// getEmptyStructPtrType - Return a "{ }*" type.
///
-const std::string GlobalWrapper::getName() const {
- return getStringValue(IC->getOperand(Name_op));
+const PointerType *DISerializer::getEmptyStructPtrType() {
+ // If not already defined.
+ if (!EmptyStructPtrTy) {
+ // Construct the empty structure type.
+ const StructType *EmptyStructTy =
+ StructType::get(std::vector<const Type*>());
+ // Construct the pointer to empty structure type.
+ EmptyStructPtrTy = PointerType::get(EmptyStructTy);
+ }
+
+ return EmptyStructPtrTy;
}
-/// getType - Return the type of the global.
+/// getTagType - Return the type describing the specified descriptor (via tag.)
///
-const GlobalVariable *GlobalWrapper::getType() const {
- return getGlobalValue(IC->getOperand(Type_op));
+const StructType *DISerializer::getTagType(DebugInfoDesc *DD) {
+ // Attempt to get the previously defined type.
+ StructType *&Ty = TagTypes[DD->getTag()];
+
+ // If not already defined.
+ if (!Ty) {
+ // Get descriptor type name.
+ const char *TS = DD->TypeString();
+
+ // Set up fields vector.
+ std::vector<const Type*> Fields;
+ // Add tag field.
+ Fields.push_back(Type::UIntTy);
+ // Get types of remaining fields.
+ DIGetTypesAppMgr GTAM(*this, Fields);
+ GTAM.ApplyToFields(DD);
+
+ // Construct structured type.
+ Ty = StructType::get(Fields);
+
+ // Construct a name for the type.
+ const std::string Name = std::string("lldb.") + DD->TypeString() + ".type";
+
+ // Register type name with module.
+ M->addTypeName(Name, Ty);
+ }
+
+ return Ty;
}
-/// isStatic - Return true if the global is static.
+/// getString - Construct the string as constant string global.
///
-bool GlobalWrapper::isStatic() const {
- return cast<ConstantBool>(IC->getOperand(Static_op))->getValue();
+GlobalVariable *DISerializer::getString(const std::string &String) {
+ // Check string cache for previous edition.
+ GlobalVariable *&Slot = StringCache[String];
+ // return GlobalVariable if previously defined.
+ if (Slot) return Slot;
+ // Construct strings as an llvm constant.
+ Constant *ConstStr = ConstantArray::get(String);
+ // Otherwise create and return a new string global.
+ return Slot = new GlobalVariable(ConstStr->getType(), true,
+ GlobalVariable::InternalLinkage,
+ ConstStr, "str", M);
}
-/// isDefinition - Return true if the global is a definition.
-///
-bool GlobalWrapper::isDefinition() const {
- return dyn_cast<ConstantBool>(IC->getOperand(Definition_op))->getValue();
+/// Serialize - Recursively cast the specified descriptor into a GlobalVariable
+/// so that it can be serialized to a .bc or .ll file.
+GlobalVariable *DISerializer::Serialize(DebugInfoDesc *DD) {
+ // Check if the DebugInfoDesc is already in the map.
+ GlobalVariable *&Slot = DescGlobals[DD];
+
+ // See if DebugInfoDesc exists, if so return prior GlobalVariable.
+ if (Slot) return Slot;
+
+ // Get DebugInfoDesc type Tag.
+ unsigned Tag = DD->getTag();
+
+ // Construct name.
+ const std::string Name = std::string("lldb.") +
+ DD->TypeString();
+
+ // Get the type associated with the Tag.
+ const StructType *Ty = getTagType(DD);
+
+ // Create the GlobalVariable early to prevent infinite recursion.
+ GlobalVariable *GV = new GlobalVariable(Ty, true,
+ GlobalValue::InternalLinkage,
+ NULL, Name, M);
+
+ // Insert new GlobalVariable in DescGlobals map.
+ Slot = GV;
+
+ // Set up elements vector
+ std::vector<Constant*> Elements;
+ // Add Tag value.
+ Elements.push_back(ConstantUInt::get(Type::UIntTy, Tag));
+ // Add remaining fields.
+ DISerializeAppMgr SRAM(*this, Elements);
+ SRAM.ApplyToFields(DD);
+
+ // Set the globals initializer.
+ GV->setInitializer(ConstantStruct::get(Ty, Elements));
+
+ return GV;
}
-/// getGlobalVariable - Return the global variable (tag == DW_TAG_variable.)
-///
-GlobalVariable *GlobalWrapper::getGlobalVariable() const {
- return getGlobalValue(IC->getOperand(GlobalVariable_op));
+//===----------------------------------------------------------------------===//
+
+/// markVisited - Return true if the GlobalVariable hase been "seen" before.
+/// Mark visited otherwise.
+bool DIVerifier::markVisited(GlobalVariable *GV) {
+ // Check if the GlobalVariable is already in the Visited set.
+ std::set<GlobalVariable *>::iterator VI = Visited.lower_bound(GV);
+
+ // See if GlobalVariable exists.
+ bool Exists = VI != Visited.end() && *VI == GV;
+
+ // Insert in set.
+ if (!Exists) Visited.insert(VI, GV);
+
+ return Exists;
+}
+
+/// Verify - Return true if the GlobalVariable appears to be a valid
+/// serialization of a DebugInfoDesc.
+bool DIVerifier::Verify(GlobalVariable *GV) {
+ // Check if seen before.
+ if (markVisited(GV)) return true;
+
+ // Get the Tag
+ unsigned Tag = DebugInfoDesc::TagFromGlobal(GV, true);
+ if (Tag == DIInvalid) return false;
+
+ // If a compile unit we need the debug version.
+ if (Tag == DI_TAG_compile_unit) {
+ DebugVersion = CompileUnitDesc::DebugVersionFromGlobal(GV, true);
+ if (DebugVersion == DIInvalid) return false;
+ }
+
+ // Construct an empty DebugInfoDesc.
+ DebugInfoDesc *DD = DebugInfoDesc::DescFactory(Tag);
+ if (!DD) return false;
+
+ // Get the initializer constant.
+ ConstantStruct *CI = cast<ConstantStruct>(GV->getInitializer());
+
+ // Get the operand count.
+ unsigned N = CI->getNumOperands();
+
+ // Get the field count.
+ unsigned &Slot = Counts[Tag];
+ if (!Slot) {
+ // Check the operand count to the field count
+ DICountAppMgr CTAM;
+ CTAM.ApplyToFields(DD);
+ Slot = CTAM.getCount();
+ }
+
+ // Field count must equal operand count.
+ if (Slot != N) {
+ delete DD;
+ return false;
+ }
+
+ // Check each field for valid type.
+ DIVerifyAppMgr VRAM(*this, GV);
+ VRAM.ApplyToFields(DD);
+
+ // Release empty DebugInfoDesc.
+ delete DD;
+
+ // Return result of field tests.
+ return VRAM.isValid();
}
//===----------------------------------------------------------------------===//
MachineDebugInfo::MachineDebugInfo()
-: CompileUnits()
+: SR()
+, DR()
+, VR()
+, CompileUnits()
, Directories()
, SourceFiles()
, Lines()
/// AnalyzeModule - Scan the module for global debug information.
///
void MachineDebugInfo::AnalyzeModule(Module &M) {
+ SR.setModule(&M);
+ DR.setModule(&M);
SetupCompileUnits(M);
}
/// SetupCompileUnits - Set up the unique vector of compile units.
///
void MachineDebugInfo::SetupCompileUnits(Module &M) {
+ SR.setModule(&M);
+ DR.setModule(&M);
// Get vector of all debug compile units.
std::vector<GlobalVariable*> Globals =
getGlobalVariablesUsing(M, "llvm.dbg.translation_units");
// Scan all compile unit globals.
for (unsigned i = 0, N = Globals.size(); i < N; ++i) {
- // Create wrapper for compile unit.
- CompileUnitWrapper CUI(Globals[i]);
- // Add to result.
- if (CUI.isCorrectDebugVersion()) CompileUnits.insert(CUI);
+ // Add compile unit to result.
+ CompileUnits.insert(
+ static_cast<CompileUnitDesc *>(DR.Deserialize(Globals[i])));
}
-
- // If there any bad compile units then suppress debug information
- if (CompileUnits.size() != Globals.size()) CompileUnits.reset();
}
/// getCompileUnits - Return a vector of debug compile units.
///
-const UniqueVector<CompileUnitWrapper> MachineDebugInfo::getCompileUnits()const{
+const UniqueVector<CompileUnitDesc *> MachineDebugInfo::getCompileUnits()const{
return CompileUnits;
}
-/// getGlobalVariables - Return a vector of debug global variables.
+/// getGlobalVariables - Return a vector of debug GlobalVariables.
///
-std::vector<GlobalWrapper> MachineDebugInfo::getGlobalVariables(Module &M) {
+std::vector<GlobalVariableDesc *>
+MachineDebugInfo::getGlobalVariables(Module &M) {
+ SR.setModule(&M);
+ DR.setModule(&M);
// Get vector of all debug global objects.
std::vector<GlobalVariable*> Globals =
getGlobalVariablesUsing(M, "llvm.dbg.globals");
- // Accumulation of global variables.
- std::vector<GlobalWrapper> GlobalVariables;
+ // Accumulation of GlobalVariables.
+ std::vector<GlobalVariableDesc *> GlobalVariables;
-// FIXME - skip until globals have new format
-#if 0
// Scan all globals.
for (unsigned i = 0, N = Globals.size(); i < N; ++i) {
- // Create wrapper for global.
- GlobalWrapper GW(Globals[i]);
- // If the global is a variable then add to result.
- if (GW.getTag() == DW_TAG_variable) GlobalVariables.push_back(GW);
+ GlobalVariable *GV = Globals[i];
+ if (DebugInfoDesc::TagFromGlobal(GV, true) == DI_TAG_global_variable) {
+ GlobalVariableDesc *GVD =
+ static_cast<GlobalVariableDesc *>(DR.Deserialize(GV));
+ GlobalVariables.push_back(GVD);
+ }
}
-#endif
return GlobalVariables;
}
projects / oota-llvm.git / commitdiff